Lifespan Nutrition

Bill Sardi Health Blog

  • Don’t say dietary supplements don’t work

    I’m of cataract age (in my early 70s).  (cataract = cloudy focusing lens)

    I’ve got clear lenses, no glaucoma (elevated fluid pressure); no other eye conditions typical for my age.

    My retina scans you can see below.

    My central retinal thickness is 255-256 right and left eye micrometers, about normal.

    It would be typical for a 70+ year old to have drusen (oxysterol aka cholesterol) deposits at the back of my eyes.  The scan below shows zero drusen.

    My optic nerve and blood vessels are healthy.

    I have habitually worn UV-blue-blocking sun lenses when outdoors during the day since age 40.

    I have been supplementing my diet with lutein since 1992 when lutein first became available as a dietary supplement.

    I take resveratrol since 2004 when it was popularized as an anti-aging molecule.

    I have taken IP6 rice bran, an iron chelator, since the mid 1990s.

    My vision is 20/30 in both eyes and I needed a prescription for astigmatism (irregular curvature of the front cornea of the eyes).

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  • Does Your Multivitamin Provide Nutrients That Boost Natural Killer Cell Activity To Optimize Your Immune System?

    Modern medicine has a proposition for you. Here it is:

    Grow old, wait for your immune system to decline, develop pneumonia, cancer and all manner of viral infections, then let modern medicine step in and rescue you from life-threatening health problems.

    With that in mind, modern medicine is ramping up efforts to utilize a subset of white blood cells known as natural killer (NK) cells primarily to kill cancer cells. Natural killer cells release a toxic chemical called interferon to destroy tumor cells.

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  • Enough Is Enough

    Balz Frei, PhD; Bruce N. Ames, PhD; Jerey B. Blumberg, PhD; Walter C. Willett, MD, DrPH


    Guallar and colleagues (1) conclude that “the case is closed – supplementing the diet of well-nourished adults with (most) mineral or vitamin supplements has no clear benefit and might even be harmful.” However, they ignore decades o nutrition research and diet monitoring o the U.S. population to reach this misleading conclusion.

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  • P5P: Does Your Multivitamin Provide This Superior Form Of Vitamin B6? Probably Not

    Multivitamins are often formulated to compete on price against other brands and therefore provide the cheapest forms of vitamins and minerals available since 80% of consumers buy on price rather than quality.  However, the most expensive vitamins consumers can buy are those that don’t work.

    Pyridoxine is the common form of B6 provided in more than 95% of multivitamins.  It is an effective but not optimal form of this vitamin and most of the time converts to pyridoxyl 5 phosphate (P5P-B6), the active form of this B vitamin in the human body.

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  • Hair growth with lavender

    I don’t know a guy who wouldn’t apply something to his bald spot if it worked.  It makes sense to apply something topically rather than take something orally.  So recently researchers applied minoxidil, the primary ingredient in Rogaine, or lavender oil on skin areas of laboratory mice.  New hair follicles, thicker skin, and deeper hair follicle depth were predictably demonstrated with minoxidil.  Surprisingly lavender oil had a hair growth-promoting effect.  Researchers suggest lavender oil could be a practical application to promote hair growth. [Toxicological Research April 2016]

  • Vitamin K belatedly proposed for bone health (decades late)

    How come the research community launches out to prove something that is already widely known?

    A recent news headline reads: “Cheesy vitamin boosts bones; could mean an end for osteoporosis.”  The article went on to say a trial has been launched with vitamin K supplements to see if it slows or even reverses progressive bone loss in post-menopausal females.  Vitamin K, known as a blood-clotting nutrient, is also an anti-calcifying agent.  –[Daily Mail UK June 25, 2016]

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  • Modern version: apple a day keeps the doctor away

    Now there is a lot of talk about gut bacteria these days and it is quite valid.  The four pounds of bacteria in our gut (intestines) is the locus of inflammation in our body.  Low-grade inflammation is the hallmark characteristic of aging.  In one remarkable study, researchers provided a molecule found in grapes to the diet of animals and via favorable alteration of gut bacteria, atherosclerotic plaque in the arteries of lab animals remarkably vanished! []

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  • Got stem cells?

    Stem cells are those raw undefined cells that can morph into a new heart, brain, muscle cell.  There is a pool of stem cells throughout your body that is made endogenously.  Stem cells are critical for cellular repair.  There is a horde of dietary supplements sold online that purport to stimulate stem cell production.  Most of the stem cell-inducing dietary supplements being sold offer beneficial ingredients.  A common one is astragalus, an herb that has been shown to promote stem cells in rodents.  [Journal of Orthopedics & Traumatology 2011]

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  • Did anybody notice?

    The problem with heart attacks, in particular silent heart attacks (no chest pain or other symptoms) is that damaged heart muscle once scarred takes a long time to heal. Whereas cells such as those in the skin are replaced every few weeks, the heart muscle cells you were born with are still pumping blood in your adult years.  Once you damage these cells, they are not quick to be replaced.  Scarring (fibrosis) is likely a problem that prevails for the remainder of life after a heart attack.  So it is critically important to protect heart muscle cells should a heart attack (a blockage of circulation to the heart) occur.   Actually, the damage done to heart muscle occurs when the blockage of a coronary artery is opened and oxygen is supplied.  At this moment, oxygen radicals are created that damage heart muscle.

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  • Oops, it wasn’t cancer after all.

    GreenMedInfo did a good job of covering a panel report by the National Cancer Institute that revealed millions of Americans were wrongly diagnosed with cancer (that report was issued in 2012).  GreenMedInfo estimates 1.3 million women were treated for breast cancer over the past 30 years who never had cancer.  Visit GreenMedInfo.

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